随笔分类 - Data-Structure
摘要：package com.example.demo; import java.util.ArrayList; public class Queue { ArrayList list = new ArrayList(); //入队 public void in(Object o) { list.add(o); } //出队 pu...
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摘要：package com.example.demo; import java.util.ArrayList; public class Stack { ArrayList list = new ArrayList(); //入栈 public void push(Object o){ list.add(o); } //出栈 pu...
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摘要：package com.example.demo; public class BTree { public int data; public BTree left; public BTree rigth; public boolean hasLeft(){ return left != null;
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